Sound box for phonographs



Oct. 16 1923. 1,471,233 V D. BERG SOUND BOX FOR PHONOGRAPHS Filed Aug.10 1922 Jazzafley 1 nANA ER pr someoonnmsgconoimno. i

r i socia sexton PHOL TOGRAPH SQ "Ap gl icaticji fileil August-10,1922.SeriaI No; 58),934.

To aZZ- whom it may concern: s f V box, as f at" "and has astra'ight,extension 45* Be it known that I,DANA;BnRe,a citizen J bearingagainstthediaphragm 2 and eXtendofthel United States, residing at :FortColing froniagpoint nearithemarginof thedia f I lins, in thecounty ofLarimer and StateiQfphrag hjto afpoint slightly past thecenter T 1Colorado, have invented a new" and usefulfithereof. The extension of.theJbarQis re-'1 f Sound Box for Phonographsfo f' 1Whiol1 ,the diallydisposed and is. attached to thefdiaiv 0 following is aspecification. fi 7 .phragrnin'anylm anner desired, as by means f This inventionrelatestofsound h'oxesfor" of srivetsfi." 7

phonogra-phs' and more especially ftojxthe It isla well that the central1 I 10 mounting of the stylus har,one or the 0105i portionof-asdiaphrag'm isthemost sensi jects of the invention being to soconnect tive to vibrations and-When the vibrations 2 1. V s the stylusbar to the-diaphragm as to insure are ver Wealronlythis central portioni purity of'reproduction, greater volume of Will hegvibrated if thestylusbar is-scon sound than ordinarily, and substantialelimnectedtoithe center of the diaphragm, as

ination of the harsh secondarvtonesso ordinarily. Consequently thevolume or" noticeable where the ordinary sound boxes sound isslight. Byextending the stylus bar. at; are employed. u radially alongthediaphragm. and securing vVith the foregoing'and. other objects initthereto,.said diaphragm is vihratedfroni I 7 view, which will appearas'the description the center ma 'point close to the periphery proceeds,the invention consists or certain whenever thebar is vibrated" and,therefore,

novel details of construction and eorn'binaa greater volume.ot'toneiandapurer toney tions ofparts which will be hereinafter more 'produced thanwould be possible with fully described and pointed out in the claim, theordinary mountingoftbe stylus bar on f it being understood that variouschanges may the center of the diaphragm. I' T be made in theconstruction and arrange v Vvhat isfclaimed i514. j r i merit of the.partswi-thin the scope of the. Aphonograph sound box includinga dia- 70claim. I r i 'phragm, a'stylusholder, a. bar fixed-to and s In theaccompanying drawings'the-ipre; ,extendingfrom the holder, said barhaving a] ferred form of the invention has 'been shown stra ght: p t arig hIf gh H i s in said drawings r s I I 'lengthagainst and extendingradially along 3 Figure l is an 'elevation of'a sound box the diaphragmfrom a point adjacent the 5 7 having the presentimprovements combined enP h I'B f a d' across h n r: 7 therewith. 1 Y to a'point adjacent theperiphery of the .diai t FigureQ is a'section .on line 22, Fig-flphragm, and. meansfor securing said? ure 1. Y V straight'portiontogthediaphragm *1:

Referring to the figures byflcharacters'ot In testimony that Ifcla'im'the foregoing reference, 1 designates the'jusual sound box as myoWn,1'I have heretoafiixed my sigf structure having a diaphragm 2secured natureinthepresence'of'threewitnesses. therein in any preferredmannen A stylus I i ANA'BERGI holder 3 is movably connectedto the soundbox by. hearing members 2 and fixed rela- Witnesses I I tive to andextending from this holder is', CHARLES F. DAVIS, a stylus bar 4. Saidbar-is shaped 'to bridge GEOJA. WEBB,

' around the marginal'portion of'thesound' iOS CAR J. Mnvosn." i

